1/3s+12=23
-12 on all sides
1/3s= 11
multiply reciprocal which is 3
s=33 <span />
11!/4!2! = 39916800/24(2)= 831600
Answer:
11/16
Step-by-step explanation:
P(TTHH) = 4C2*(1/2)^4 = 4!/2!*2!*(1/2)^4=6/16
Total Probablity = 1/16 + 4/16 + 6/16
=11/16
Answer:
The rental cost for each movie = 1.5 $
The rental cost for each video game = 6.5 $
Explanation:
Let the rental cost for movie be a and video game be b.
One month Diane rented 2 movies and 12 video games for a total of $81
2 a + 12 b = 81 $ -------------------------Equation 1
The next month she rented 5 movies and 3 video games for a total of $27
5 a + 3 b = 27 $ -------------------------Equation 2
Equation 2 x 4,
20 a + 12 b = 108 $ -------------------------Equation 3
Equation 3 - Equation 1,
20 a + 12 b - ( 2 a + 12 b ) = 108 - 81
18 a = 27
a = 1.5 $
Substituting in equation 1
2 x 1.5 + 12 b = 81
12 b = 81 - 3
b = 6.5 $
The rental cost for each movie = 1.5 $
The rental cost for each video game = 6.5 $